Compiling with DISABLE_NAGLE does not propogate tcp_proto_no and never sets TCP_NODELAY#3859
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razvancrainea merged 1 commit intoOpenSIPS:3.6from Apr 14, 2026
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…r sets TCP_NODELAY
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This sounds about right, thanks for taking care of it. |
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Summary
Compiling with DISABLE_NAGLE does not set tcp_proto_no on TCP worker processes which causes the setsockopt for TCP_NODELAY to not be set when creating sockets
Details
Bug fix with 3.6 where this compile time define does not work anymore
Solution
getprotobyname("tcp");is called intcp_bind_listenerwhich is only ever called in the TCP main process so thetcp_proto_nois always -1 in worker processes, the solution here was to just remove that call and useIPPROTO_TCPdirectly in thesetsockoptthe enums for the different protos innetinet/in.hare used in multiple different areas in the source code so changing TCP_NODELAY to use the enum directly matches the pattern of other socket optionsCompatibility
It will make 3.6 behave consistently when the compile time flag is set.